This CZ Front Sight Drill is for making the hole in the new front sight.
Fitting: Remove the roll pin using and appropriate 2mm punch. Tap the old front sight out (towards the muzzle) using an appropriate soft hammer or soft block
Replace the new front sight into the dovetail and tap it toward the back of the gun until it seats in the rear of the dovetail cut. Make sure it goes all the way back.
Using the drill bit, drill through the roll pin hole (IMPORTANT) drill from the left side of the gun to the right side, drill cut clockwise and drilling from this direction will not cause the front sight to walk out as the drill starts to cut.
Replace the front sight pin, new front sight pins are available separately is required.